CVE-2018-12293 EXPLOIT
8.8
HIGH · CVSS 3.0 · EPSS 10.4% (pctl 96)
Patch early
A public exploit exists.
Description
The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1, is vulnerable to a heap-based buffer overflow triggered by an integer overflow, which could be abused by crafted HTML content.
Scoring
| CVSS | 8.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 10.39% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-190 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-06-19 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| webkitgtk | webkitgtk\+ |
| wpewebkit | wpe webkit |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | WebkitGTK+ 2.20.3 - 'ImageBufferCairo::getImageData()' Buffer Overflow (PoC) | 2018-08-16 |
References
- http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2018/06/14/1
- http://www.securityfocus.com/archive/1/542087/100/0/threaded
- https://bugs.webkit.org/show_bug.cgi?id=186384
- https://security.gentoo.org/glsa/201808-04
- https://trac.webkit.org/changeset/232618
- https://usn.ubuntu.com/3687-1/
- https://www.exploit-db.com/exploits/45205/
- http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2018/06/14/1
- http://www.securityfocus.com/archive/1/542087/100/0/threaded
- https://bugs.webkit.org/show_bug.cgi?id=186384
- https://security.gentoo.org/glsa/201808-04
- https://trac.webkit.org/changeset/232618
- https://usn.ubuntu.com/3687-1/
- https://www.exploit-db.com/exploits/45205/
→ the Explorer · watch your stack · NVD